protected void Button1_Click(object sender, EventArgs e)
    {//获取服务器的环境变量
        Response.Write("<br />当前网页虚拟路径是:" + Request.ServerVariables["url"]);
        Response.Write("<br />当前网页虚拟路径是：" + Request.RawUrl);
        Response.Write("<br />实际路径：" + Request.ServerVariables["path_translated"]);
        Response.Write("<br />实际路径：" + Request.PhysicalPath);
        Response.Write("<br />服务器名：" + Request.ServerVariables["server_name"]);
        Response.Write("<br />服务器IP：" + Request.UserHostAddress);
    }

    protected void Button2_Click(object sender, EventArgs e)
    {//获取浏览器的环境变量
        Response.Write("<br />这个浏览器是否支持背景音乐：" + Request.Browser.BackgroundSounds);
        Response.Write("<br />这个浏览器是否支持框架：" + Request.Browser.Frames);
        Response.Write("<br />客户用的什么系统："+Request.Browser.Platform);
    }